These households comprise the community into which Robert was born. I know this because, even though they are White households, the highlighted ones are surnames that frequently occur in or are associated with my family tree. These families had small to medium-sized farms. One of the largest was Classa Mixon's and, according to the 1860 Slave Schedules, she owned 25 slaves. 
 

My 84 year old cousin, Rev. C. George Mixon, offered a tantalizing clue to Robert's parentage. C. George's grandfather was George Mixon and George's mother was named Delilah Hazel. They were family on my grandmother Julia Thomas's side but C. George said that he heard that his granddaddy and my granddaddy were first cousins. He also said that a family joke was that Robert and Julia Norris's children were siblings as well as their own cousins. If this anecdote is true, then Robert and Julia were related. The Mixon, Hazel, Brantley and Edwards surnames are all associated with Julia's side of the family. Finding them in close proximity to a Norris household lends credence to the tale.

Could Robert have been a Mixon?